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combi

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  1. N

    Nest Heat Link on a Worcester Bosch 280

    I have an old Worcester Bosch 280 combi. Currently it doesn't have a stat connected so the connectors on the board are N (Unused) 1 & 2 (marked as Room Stat) are jumpered, and I get 240V from 2 when metered out, but nothing from 1 (assumed to be stat switch on) 3 is unused and unmarked 4 is...
  2. G

    Hello all!

    The name's Mark I'm a 37 year old plumber from Crawley, West Susssex and wiring makes my brain hurt! :laughing: I have read a few posts and see there are some helpful people giving some very useful advice so I signed up to say hi and hopefully get some advice with an issue I'm having wiring a...
  3. G

    Combi boiler with dual heating zones and 2x programmable stats.

    First post so let me start by saying hello to all! I'm a plumber not an electrician, nor do I consider myself a heating engineer and would appreciate any help... What I have is a Worchester combination boiler which is currently hooked up to a Honeywell programmable room stat. We have...
  4. R

    Drill for new job role?

    Hi all, I am due to start a new role as an electrical maintenance apprentice and need to buy myself a drill.. can anyone reccomend a certain drill/deal or give any tips when deciding which type/voltage/Ah battery to choose? 'Many thanks
  5. Pete999

    Combi Gas boiler

    I know sweet F all about gas boilers so I need some help, all of a sudden when running the Bath the H2O goes from hot to cold, been ok for yonks. N power engineer turned up today, and is trying to blame the new bathroom,a direct replacement of the old, I had a bit of a barny with the gas bloke...
  6. Rocboni

    Alpha combi tripping rcbo

    Having a few issues with our alpha boiler 4years old, had a bit of bother with it last year in the back end towards summer, no issues over summer months, now the cold weather has started, its started tripping again. Then again no heating has been on over the summer! Recent consumer unit change...
  7. S

    How do I Wire Main combi Eco 25 and HIVE 2 single channel receiver.

    Hello I have a Main combi Eco 25 (without timer) I would like some advice to connect it to my HIVE single channel receiver. I have included I photo of the boilers wiring diagram. My hive receiver is single channel and has these conections. N L 1 Common 2 Heating off 3 Heating on 4 (unused)...
  8. C

    Vaillant Home Combi 35

    Hey, I currently seek some information such as a wiring diagram. The heating system is a 2 zone valves, with a thermostat (battery operated) upstairs and downstairs. The plumbers changed the controllers that Vaillant first supplied as they were costing around £150+ each, so they changed to 2...
  9. C

    Vaillant Home Combi 35

    Hey, I currently seek some information such as a wiring diagram. The heating system is a 2 zone valves, with a thermostat (battery operated) upstairs and downstairs. The plumbers changed the controllers that Vaillant first supplied as they were costing around £150+ each, so they changed to 2...
  10. Rocboni

    Makita HP330D 10.8v LXT Combi Drill Driver Special Edition

    Makita HP330D 10.8v LXT Combi Drill Driver Special Edition, comes with holster and 1 battery, won in competition but never used. Looking for £60 Can post at cost £10 (Price lowered to 60 from 90)
  11. 123

    Heating: Worcester Bosch Combi Greenstar Etc Wiring Diagram

    123 submitted a new resource: Heating: Worcester Bosch Combi Greenstar etc Wiring Diagram - Heating: Worcester Bosch Combi Greenstar etc Wiring Diagram Read more about this resource...
  12. 123

    Heating: Worcester Bosch Combi Greenstar With Zone Valves Wiring Diagram

    123 submitted a new resource: Heating: Worcester Bosch Combi Greenstar with zone valves Wiring Diagram - Heating: Worcester Bosch Combi Greenstar with zone valves Wiring Diagram Read more about this resource...
  13. M

    Wiring A Bosch Combi Boiler

    Hi to all I need a bit of help please I hate wiring for heating but it's for my mate as the plumber hasn't sorted it Right he has got a new Bosch combi boiler and with that a linked in unvented cylinder I have no idea really how to wire it up and my mat has got both hives one for just combi...
  14. P

    Combi drill and prices!?

    Hi all, I'm looking to buy a decent (not overly expensive) combi drill. Any recommendations and ideas of what sort of price I should expect? Thanks in advance
  15. O

    Electric Combi Boilers

    A very vague, general question I'm afraid. I will be starting a complete refurb in a few weeks and the customer can't decide whether to fit a new gas combi boiler or go for an electric unit. There is gas installed in the building. The refurbishment is extensive so running circuits and cables...
  16. J

    Impact vs combi drill for drilling holes

    Who uses impacts to drill holes though wood rather than standard drills Ect, I've just started and think there amazing. Anyone see any pros cons from using an impact instead of a standard drill?
  17. O

    First house, want to retrofit Underfloor Heating. Many Questions

    Hi there, So first things first, just bought myself my first house . 1920's build in Wiltshire. Should have the keys to it next week, can't wait. Floor plan First problem is, no gas mains in the village. This means it currently has an immersion heater to supply hot water , storage...
  18. N

    IR Testing on a radial FC with Combi Boiler

    Combi boiler on a dedicated radial circuit, has a FCU no neon with a 5amp fuse. Any special precautions need to be taken before applying 500V DC? Thanks in advance for any advice
  19. M

    Solar PV, Immersun and a possible Combi-Boiler

    Having long thought of Combi boilers as the work of the Devil, Im finally coming around to the thought that they might not be quite so bad. I still have my elderly Baxi Solo at home feeding a gravity hot water set up and primatic tank but in my static caravan I have a Morco Combi that produces...
  20. T

    Combi boiler cylinder stat

    Hi all, i I have my first combi to wore up next week. I have got the drawing here for the controller and it gives me terminals for a hot water cylinde stat,The system has no cylinder in it s it's a combi so I assume that somewhere in the boiler it has a built in stat? Like I said this is my...

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